Preparation of alkyl thiocyanates by electrochemical oxidation of thiocyanate ion in the presence of alcohols and triphenylphosphite.
作者:Hatsuo MAEDA、Tomoko KAWAGUCHI、Masaichiro MASUI、Hidenobu OHMORI
DOI:10.1248/cpb.38.1389
日期:——
Conversion of primary alcohols to the corresponding thiocyanates was effected by constant-current electrolysis of thiocyanate ion in dichloromethane containing an alcohol, triphenylphosphite, and 2, 6-lutidinium perchlorate or tetrafluoroborate. The electrolysis was performed at ambient temperature in a one-compartment cell using a graphite plate and a platinum plate as the anode and the cathode, respectively. 2, 6-Lutidinium cation effectively extracted thiocyanate ion into the organic phase from sodium thiocyanate suspended in the reaction mixture.
通过在含有醇、三苯膦和2,6-二甲基吡啶高氯酸盐或四氟硼酸盐的二氯甲烷中对硫氰酸盐离子进行恒电流电解,实现了将一级醇转化为相应的硫氰酸盐。电解在室温下进行,使用一个分室的电解槽,其中石墨板和铂板分别作为阳极和阴极。2,6-二甲基吡啶阳离子有效地从悬浮在反应混合物中的硫氰酸钠中将硫氰酸盐离子提取到有机相中。